The Alternative for NET SEND forum topic suggested a method
to use Pushover but I just wanted to use PowerShell without the need for curl so that no additional tools were required and
so that I had more control over the output.

Here is a screenshot what an alert looks like on the phone using the script and Pushover application registration:

Did you make any scripts, tools, add-ons which may be useful? Please send an e-mail so it can be shared to help other users.